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Coherent routing, Routed Optical Networking, Converged Optical Routing Architecture (CORA), are all names for the same concept: an advanced network architecture which integrates coherent optical transceivers directly into IP routers. This convergence of layers creates a simplified and highly efficient IP-over-DWDM (IP over Dense Wavelength Division Multiplexing) network.

Mission-critical networks are changing fast. Utilities, transport operators, and critical infrastructure providers are under pressure to deliver more data, more automation, and more resilience—without ever compromising reliability. The challenge is simple: legacy SDH/SONET networks were built for a different era. They still deliver reliability. But they can’t support what comes next.

IPoDWDM is an architecture that integrates IP routing and Dense Wavelength Division Multiplexing into a single, converged platform. This integration is achieved by placing coherent optics directly into the ports of IP routers and switches, a fundamental shift from traditional network designs. Consequently, this approach eliminates the need for a separate, dedicated layer of optical transponders and their associated shelving.

IP over Dense Wavelength Division Multiplexing (IPoDWDM) is a network architecture that integrates optical transmission capabilities directly into IP networking equipment such as routers and switches. This approach represents a significant evolution from traditional network designs, where IP and optical layers were managed as separate domains with distinct hardware and operational teams.